工程科学学报 (Feb 2017)
Comparison on the solid-state desilication kinetics of silicon manganese powder by microwave heating and conventional heating
Abstract
Layered Mn-based series Li[Lix(MnM)1-x]O2 (M=Ni, Co, Cr, …) due to its much higher capacity is one of the very promising candidates of cathodes, which has become a research hotspot recently and attracted more and more attention. Especially, with the aid of advanced characterization techniques including in-situ analysis, studies on the complex structure and high-capacity delivering mechanism of the series have achieved significant progress. In the paper, the structural characterization and charge-discharge behavior of the high-energy density layered cathode were briefly introduced. Study progresses on the voltage degradation, interface/surface variation during cycling and performance improvements of Li[Lix(MnM)1-x]O2 were reviewed in detail particularly in view of its exiting issues. Furthermore, the challenges and prospects in the high-energy density layered cathode materials were also discussed herein.
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